A scan reveals, shockingly, that he has advanced cancer.

扫描后发现，他的癌症已到了晚期。这太让人吃惊了。

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A brain scan last Friday finally set his mind at rest.

上周五进行的一次脑部扫描终于让他安心了。

《柯林斯英汉双解大词典》

A single scan is unlikely to tell you everything you need to know.

一次扫描不可能获得您所需要的所有信息。

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The seven-member crew controlled a robotic arm equipped with cameras and lasers to scan the surface of the heat shield.

VOA: standard.2009.07.16

A less invasive procedure known as a virtual colonscopy is done with a CT scan that passes x-rays through a patient's abdomen.

VOA: standard.2010.04.07

Security goes beyond most fingerprint readers, as well: while a basic swipe-and-done scan is an option, the truly cautious can require a multi-scan sequence that fends off just about any intruder.

ENGADGET: Insert Coin: PIPA Touch fingerprint reader lets phone owners authenticate most anything

He had me bite down on a device called a T-Scan that contains 2, 000 pressure sensors.

FORBES: Are those deluxe executive exams worth it?

''We locate objects on the sea bed with a side-scan sonar device which we tow along behind our salvage ship, '' she explained.

BBC: Hunting for Cuba's hidden treasure